66670683 has 16 divisors (see below), whose sum is σ = 91360896. Its totient is φ = 43223040.

The previous prime is 66670679. The next prime is 66670687. The reversal of 66670683 is 38607666.

It is an interprime number because it is at equal distance from previous prime (66670679) and next prime (66670687).

It is not a de Polignac number, because 66670683 - 2² = 66670679 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66670687) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32148 + ... + 34158.

It is an arithmetic number, because the mean of its divisors is an integer number (5710056).

Almost surely, 2^66670683 is an apocalyptic number.

66670683 is a deficient number, since it is larger than the sum of its proper divisors (24690213).

66670683 is a wasteful number, since it uses less digits than its factorization.

66670683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2314.

The product of its (nonzero) digits is 217728, while the sum is 42.

The square root of 66670683 is about 8165.2117547557. The cubic root of 66670683 is about 405.4882755916.

The spelling of 66670683 in words is "sixty-six million, six hundred seventy thousand, six hundred eighty-three".